A. deltoideum — Readham

(deltoid).* sti. densely tufted, 3in. to 4in. long, wiry, erect. fronds 4in. to 6in. long, ¾in. broad, with a terminal lobe and numerous sub-opposite pinnæ, the lower ones distant, distinctly stalked, ½in. long, ¼in. to ⅜in. broad, hastate-deltoid, cordate or cuneate at the base. sori in interrupted lines along the sides of the pinnæ. West Indian Islands. Stove species. IMG:7081556231692414330_i_026.jpg: F IG . 28. A DIANTUM DIAPHANUM .